Nouns denoting natural phenomena

reaction propulsion
propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum
a violent gusty wind
a sudden violent change in the earth's surface
whole gale
wind moving 55-63 knots; 10 on the Beaufort scale
infrared ray
a ray of infrared radiation; produces a thermal effect (as from an infrared lamp)
change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation
a severe tropical cyclone usually with heavy rains and winds moving at 63-136 knots (12 on the Beaufort scale)
chemical phenomenon
any natural phenomenon involving chemistry (as changes to atoms or molecules)
(physics) a stress that produces an elongation of an elastic physical body
moderate gale
wind moving 32-38 knots; 7 on the Beaufort scale
a wall of water rushing ahead of the flood
gamma ray
electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength
aerodynamic lift
the component of the aerodynamic forces acting on an airfoil that opposes gravity
laser beam
a beam of light generated by a laser
one or more circles of light seen around a luminous object
any result that follows its cause after an interval
Tyndall effect
the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue
gravitational interaction
a weak interaction between particles that results from their mass; mediated by gravitons
hydrogen bond
a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
high wind
a very strong wind
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